diff --git a/pkgs/development/python-modules/pip-tools/default.nix b/pkgs/development/python-modules/pip-tools/default.nix
index 2b079c8f00e3..41e4edbb6ba9 100644
--- a/pkgs/development/python-modules/pip-tools/default.nix
+++ b/pkgs/development/python-modules/pip-tools/default.nix
@@ -1,37 +1,30 @@
 { lib
-, fetchPypi
-, pythonOlder
-, buildPythonPackage
-, pip
-, pytestCheckHook
-, pytest-xdist
-, click
-, setuptools-scm
-, pep517
 , stdenv
+, buildPythonPackage
+, click
+, fetchPypi
+, pep517
+, pip
+, pytest-xdist
+, pytestCheckHook
+, pythonOlder
+, setuptools
+, setuptools-scm
+, wheel
 }:
 
 buildPythonPackage rec {
   pname = "pip-tools";
-  version = "6.6.1";
+  version = "6.6.2";
+  format = "setuptools";
 
-  disabled = pythonOlder "3.6";
+  disabled = pythonOlder "3.7";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "sha256-Y04+jUcHJXwAQxPRap1sFMHOlNPA+h+Tw40mRAHy5PI=";
+    hash = "sha256-9jhQOp932Y2afXJYSxUI0/gu0Bm4+rJPTlrQeMG4yV4=";
   };
 
-  checkInputs = [
-    pytestCheckHook
-    pytest-xdist
-  ];
-
-  preCheck = lib.optionalString (stdenv.isDarwin && stdenv.isAarch64) ''
-    # https://github.com/python/cpython/issues/74570#issuecomment-1093748531
-    export no_proxy='*';
-  '';
-
   nativeBuildInputs = [
     setuptools-scm
   ];
@@ -40,14 +33,30 @@ buildPythonPackage rec {
     click
     pep517
     pip
+    setuptools
+    wheel
   ];
 
+  checkInputs = [
+    pytest-xdist
+    pytestCheckHook
+  ];
+
+  preCheck = lib.optionalString (stdenv.isDarwin && stdenv.isAarch64) ''
+    # https://github.com/python/cpython/issues/74570#issuecomment-1093748531
+    export no_proxy='*';
+  '';
+
   disabledTests = [
-    # these want internet access
+    # Tests require network access
     "network"
     "test_direct_reference_with_extras"
   ];
 
+  pythonImportsCheck = [
+    "piptools"
+  ];
+
   meta = with lib; {
     description = "Keeps your pinned dependencies fresh";
     homepage = "https://github.com/jazzband/pip-tools/";